Receptacle for incandescent electric lamps.



I WIT NEZEEEEI A. WEBER, J11. BEGEPTAGLE ROB IN GANDESGENT ELECTRIC LAMPS. APPLICATION FILED DIBO.13, 1901.

965,258. Patented July 26, 1910.

2 SHEETS-SHEET 1.

A. WEBER, JR. REGEPTACLE FOR INCANDESGENT ELECTRIC LAMPS. APPLICATION FILED DEO.13, 1907.

965,258. Patented July 26, 1910.

2 BEEET8$HEET, 2.

' h my \A/ITNEEEEE T151; 5 il N E AUGUST WEBER, JR., OF SCHENECTADY, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, T WEBER ELECTRIC COMPANY, OF SGI-IENECTADY, NEW YORK, A COR- PcR-ATIoN or NEW YonK.

Specification of Letters Patent.

Patented-July 2c, 1910-.

Application filed December 13, 1907. Serial No. 406,313. Y

' To all whom it may concern:

Be it known that I, AUGUST WEBER, J r., a citizen of the United States, residing at Schenectady, county of Schenectady, and

- State of New York, have invented certain new and useful Improvements in Receptacles for Incandescent Electric Lamps, of which the following is a specification.

The invention relates to such improvements and consists of the novel construction and combination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification.

Similar characters refer to similar parts in the several res therein.

Figure 1 of t e drawings is a plan view, with the insulating-shell removed, of. the

- open end of my improved receptacle for incandescent electric lamps. Fig. 2 is a central vertical cross-section of the same taken on the broken line 2'2 in Fig. 1. Fig. 3 is a plan view of the inner member of the insulating-base, showing seated thereupon the yielding detents whereby the-insulating-shell of the receptacle is locked in position. Fig. 4 is a plan view of the inner or larger end of the lnsulating-shell. Fig. 5' is a view in perspective of one of the detents detached.

Fig. 6 is a View in side elevation of thereceptacle partly broken away to show one of the detents and the toothed rack with which it engages. Fig. 7 is a plan View of the smaller or outer end of the insulating-shell. Fig. 8 is a central vertical cross-section of the same taken on the broken line 8-$ in Fig. 7. Fig. 9 is a central verticalsection Referring to the drawings, wherein the invention is shown in preferred form,'the insulating-base of the receptacle comprises an inner base-member, 1, and an outer basemember, 2, securedtogether by two screws, 3, inserted through the base-members from the back of the member, 1, into metal plates, 4 and 5, respectively, which form nuts adapted to receive the ends of thescrews on the outer side of the outer base-member 2.

The usual screw-shell, 6, adapted to receive the base of an incandescent electric lamp is secured upon the outer side of the outer base-member, 2, by means of the introverted flange, 7, on its inner end, which is interposed between the outer surface of the outer base-member, 2, and the respective nutplates, L and 5, said flange being apertured t6 permit the passage therethrough of the screws 3. The nut-plate, 5, forms one of the terminal-plates, having an extension, 8, projecting through an aperture, 9, in the screwshell, and provided with a binding-screw,

10, whereby it is adapted to be connected with one side of. the electric circuit. The contact for the central lamp terminal is formed by' a second terminal plate, 11, the contact end, 12, of which projects through an aperture, l4, formed by cutting away a portion of the screw-shell, the shank of said plate being oiiset and inserted between the two porcelain blocks of the base, and clamped tightly therebetween by means of the screws 3. This plate, 11, also has a binding-screw, 13, whereby it is adapted to be connected with the other side of the circuit.

The parts above described constitute the the inner end of which is adapted to receive the insulating-base, and the outer end of which is interiorly screw-threaded, and

adapted to receive and screw upon the screwshell 6.

In order to insure the retention of the in- I sufiicient resistance to prevent an accidental rotative movement of the insulatin -shell.

. The shanks of the detents, 17, are ollset to occuoy seats inthe inner base-member, and are securely clamped between the base-members by means of the screws 3.

The insulating-shell, having been forcibl fully screwed upon the screw-shell, (3, Wil be securely held thereon under all the ordinary con itions to which such receptacles are subjected in use, such as the vibration of buildings where machinery is used, or the vibration of boats, railway cars, or other vehicles in which the receptacles may be employed.

I have shown the insulating-base made of two members, but for certain purposes of the invention any known form of insulatingbase may be employed, and the detents may be mounted thereon in any known manner.

Any desired form of detent mechanism may be employed which will afford the necessary resistance to accidental rotation, and at the same time permit the, forcible rotation of the insulating-shell.

In Figs. 1, 2 and 6,'I have shown myimproved receptacle attached to a wall or other support, 18, by means of screws, 19, inserted through apertures, 20, in the inner base-member, 1,-which member is also provided with apertures, 21, for the circuit wires 22.

For certain purposes of the invention I prefer to have the insulating-shell, 15, so

formed interiorly that it is adapted to rotate as a whole about the inclosed insulating-base as well as the screw-shell, whereby I am able to mount and secure said shell directly upon the screw-shell by means of a screw-threaded connection therewith, thereby dispensing with other separate attaching means, such as threaded locking-rings.

What I claim as new and desire to secure by Letters Patent is- 1. In a receptacle for incandescent electric lamps, and in combination, an insulatingbase; a screw-shell mounted upon said base; a shell of insulating material formed to receive and rotate around said insulating-base and screw-shell, said shell havingan integral portion interiorly screw-threaded to receive and fit said screw-shell.

2. In a receptacle for incandescent electric lamps, and in combination, an insulatingbase; a screw-shell mounted upon said base; a shell of insulating material formed to receive and rotate around said insulating-base and screw-shell, said shell having an integral portion interiorly screw-threaded to receive and fit said screw-shell; and a detent adapted to resist rotation of said insulating shell.

3. In a receptacle for incandescent electric lamps, and in combination, an insulating base; a screw-shell mounted upon said base; a shell of insulating material formed to receive and rotate around said insulating-base and screw-shell, said shell having an integral portion interiorly screw-threaded to receive and fit said screw-shell, said insulatingshell and insulating-base having interengaging means to resist relative rotary movement.

4;. In a receptacle for incandescent electric lamps, the combination with a pair of members comprising an insulating-base; and a base-inclosing shell of insulating material having an interiorly screw-threaded portion, one of said members having a toothed rack thereon; of a detent on the other of said members engageable with said toothed rack; and a screw-shell mounted on said insulat-- ing-base and adapted to receive and fit the interiorly screw-threaded portion of said shell of insulating material.

5. In a receptacle for incandescent electric lamps, the combination with an insulatingbase; and a screw-shell mounted thereupon; of a shell of insulating material adapted to receive and screw upon said screw-shell, and having an interiorly located circular toothed rack; and a yielding detent mounted upon said insulating-base and adapted to engage said toothed rack.

6. In a receptacle for incandescent electric lamps, the combination with a two-part insulating-base; and a screw-shell .mounted upon the base; of a shell of insulating material adapted to receive and screw upon said screw-shell, and having a toothed rack; and a detent, engageable with said rack, inserted and held between the base-members.

In testimony whereof, I have hereunto set my handthis 11th day of December, 1907.

AUGUST WEBER, JR. 

